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rod x gumball

Objective: To assess the role of the difference between the proximal junctional angle (PJA) and rod contouring angle (RCA) (PJA-RCA) in the development of postoperative proximal junctional angle (PJK) in Lenke I and II adolescent idiopathic scoliosis (AIS) patients. Methods: We performed a retrospective analysis of 84 Lenke I and II AIS patients who underwent posterior segmental spinal

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